Grinder.



No. 856,167. PATBNTED-.J-UNE4, 1907.

J. N. n N. J. LISK. v

GRINDER. APPLICATION FILED `JULY 7, 1906.

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No.. 856,167. f PATNNTED JUNE 4, 1907.

J. N. & N. J. LIsK.

A'GRINDERl APPLIUATION FILED JULY '1, 190e.

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Wittmann Y TH: Norems PETERS co., WASHINGTON, n, c.

UNTTED sTATEs PATENT oEErcE.

JULIUS N. LISK AND NELSON J. LISK, OF TROY, OHIO. j A

GRINDER.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed July 7, 1906. Serial No. 325.120.

To @ZZ whom, t may concer-1t.-

Be it known that we, JULiUs N. Lrsx and NELSON J. Lrsn, citizens of the United States, residing at Troy, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Grinders; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to new and useful improvements in grinders and more particularly to that class adapted to be used in grinding coee, spices or the like and our object is to provide means for purifying the articles after'they are ground by removing the dust, husks and finer particles of the articles.

Other objects and advantages will be hereinafter referred to and more particularlyT pointed out in the claims.

In the accompanying drawings which are made a part of this application7 Figure 1 is an elevation, partly in section, showing an electrically operated mill with our improved' device attached thereto. Fig. 2 is a similar view with our improved attachment applied to the opposite side of the mill. Fig. 3 is an elevation of a manually operated grinder with our improved attachment applied thereto. Fig. 4 is a plan view of. a slightly modified form of construction, and Fig. 5 is a detail perspective view partly in section of a valve and parts coperating therewith.

Referring to the drawings in which similar reference numerals designate Ycorresponding parts throughout the several views, 1 indicates a grinding mill of that class adapted to be used in grinding coHee, spices or the like, and 2 indicates a motor which is preferably an electric motor, by which means the grinder is operated.

A shaft 3 is disposed through the motor and extends beyond each end thereof, the grinding mill 1 being operatively connected to one end of said shaft while to the opposite end thereof is secured a suction fan 4 around which is disposed a suitable housing 5 having a discharge chute 6 at a point on its periphery, the housing being supported on a suitable base member 7.

The mill 1 is provided at itsupper end with a hopper 8 in which articles to be ground are deposited after which they pass through the burs of the mill (not shown) and are directed through a tubular member 9 below the burs and into a drawer like receptacle 10 at the extreme lower end of the mill. A suction pipe 11 is secured at one end to the tubular member 9 immediately over the drawer 10, the opposite end thereof being disposed through one side of the housing 5 so that when the ground material is deposited into the drawer 10, the dust arising therefrom will be drawn through the pipe 11 by the suction fan 4 and discharged through the chute 6, said chute being directedl into any suitable receptacle for receiving the dust.

The force of the suction pipe through the pipe 11 is regulated by means of a valve 12, said valve being pivotally secured in the pipe 11 by means of a stem 13, to the upper end of which is pivotally secured a latch 14, said latch being adapted to engage with notches in a keeper 15 mounted upon the pipe 11 in juxtaposition to the stem 13. By this construction it will be seen that the valve 12 may be adjustably secured in any positionby moving the latch 14 to the right or left and securing the same in one of the notches in the keeper. j

In Fig. 2 of the drawings, the shaft 3 is disposed through the mill 1 and the suction fan 4 is disposed on the opposite side of the grinding mill to that shown in Fig. 1.

In Fig. 3 we have shown a mill adapted to be manually operated with our improved suction fan secured thereto, the fan being operated from the power wheel 15', a belt 17 extending from the power wheel to a pulley 18 on the fan shaft 19 while in Fig. 4 we have shown the suction fan disposed to one side of the mill and operated by a driving belt or the like 16 which is connected to any source of motive power and independent of the power driving the mill.

By this construction it wil be seen that we i 'IOO TIO

grinding loW sai the lower' end oi said tubular member; of a mechanism, a tubular member bel sition and additional means to rotate said grinding mechanism, a receptacle at shaft.

In ,testimony whereof We have signed our fan secured to one end of said shaft, a housing names to this specication in the presence of 15 for said fan, a discharge chute for said houstwo subscribing Witnesses.

ing, a pipe, one end of which is directed into engagement with said tubular member and below the grinding mechanism While the opposite end thereof enters said housing at its axial center, a rotatable Valve in said pipe, means to hold said Valve in its adjusted po- JULIUS N. LISK.

NELSON J LISK.

Witnesses:

HIRAM BEARD,` W. H. BRANDON. 

